2
-1
START
2-
1
1
4
-2
1
3
-2
4
-2
START
START
START
START
START
START
START
START
START
START
START
2-
2-
2-
2-
2-
2-
2-
2-
2-
2-
2-
1
1
1
1
1
1
1
1
1
1
1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1
1
1
1
1
1
1
1
1
1
1
1
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
1
1
1
1
1
1
1
1
1
1
1
3
-2
3
-2
3
-2
3
-2
3
-2
3
-2
3
-2
3
-2
3
-2
3
-2
3
-2
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
4
-2
1
2
-1
1
1
1
1
1
1
1
1
1
1
1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1
2
-1